X+5+7=18

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Solution for X+5+7=18 equation: 


Simplifying
X + 5 + 7 = 18

Reorder the terms:
5 + 7 + X = 18

Combine like terms: 5 + 7 = 12
12 + X = 18

Solving
12 + X = 18

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-12' to each side of the equation.
12 + -12 + X = 18 + -12

Combine like terms: 12 + -12 = 0
0 + X = 18 + -12
X = 18 + -12

Combine like terms: 18 + -12 = 6
X = 6

Simplifying
X = 6

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